I have a GPL plugin (for Joomla 1.6 / JomSocial 2.6) that I would like to use (w/ Joomla 2.5 & JomSocial 2.8) but it will need some fixing or updating. It should check for a default avatar and replace it with a random one. It installed but doesn't work.

How can I verify it's getting the data it needs?

I think one problem might be no file listed in the database is default. It looks like this plugin expects one to be there.